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Example 5 - Chapter 12 Class 8 Factorisation
Last updated at Dec. 16, 2024 by Teachoo
Chapter 12 Class 8 Factorisation
Serial order wise
Transcript
Example 5 Factorise 4𝑦^2 – 12y + 9 4𝑦^2 – 12y + 9 = 〖(2𝑦)〗^2 − 12𝑦+(3)^2 = 〖(2𝑦)〗^2 − 2×2𝑦×3 +(3)^2 = 〖(2𝑦)〗^2+ (3)^2 −2×2𝑦×3 Using (𝑎−𝑏)^2 = 𝑎^2+𝑏^2−2𝑎𝑏 Here 𝑎=2𝑦, 𝑏=3 = (〖𝟐𝒚−𝟑)〗^𝟐
